[t0neg0d]

I'm assuming this method sets the npc's return point once they are no longer attacking something?

Either way, once this method is called in perl or lua...

$npc->SaveGuardSpot();
$npc->SaveGuardSpot(1/0);

or

npc:SaveGuardSpot();
npc:SaveGuardSpot(1/0);

...the script will stop working.

Is there another way to stop an npc from returning to their spawn point? Or is this even the correct way of doing it?